To drink huge amounts of beer or lager simply to get very, very drunk. Not to savor the taste or flavor, but just to get wasted. The phrase is used in London and parts of England, usually associated with wide-boy or East-end types, although a trip to Ibiza might be rewarded with a few examples too.
"C'mon boys! Let's get lagered-up! Look at the locals, they're waiting for us to get proper pissed! C'mon boys! Lagered-up! Lagered-up! Waaay!"
by Liquid Sky September 15, 2009
 Get the Lagered-upmug.
Get the Lagered-upmug. by IEatBurgar December 6, 2019
 Get the cooched upmug.
Get the cooched upmug. by ATwad August 2, 2013
 Get the Up The Jillmug.
Get the Up The Jillmug. No n00bs Up in this ma'
by The Surrealist June 27, 2006
 Get the Up in this Ma'mug.
Get the Up in this Ma'mug. by kayristuhhh January 18, 2020
 Get the T’d upmug.
Get the T’d upmug. by WatchingNetflix December 6, 2020
 Get the act upmug.
Get the act upmug. 1. Makin money by hustlin 
2. Respect, salutation form
3. To call a formation ( gangsta's) to stand up.. for whateva the reason
2. Respect, salutation form
3. To call a formation ( gangsta's) to stand up.. for whateva the reason
by Dm¢ March 17, 2008
 Get the g's upmug.
Get the g's upmug.